strengthened
The past tense of strengthen is strengthened
The Forms of Strengthen
| Infinitive |
to strengthen |
| Present Tense |
strengthen / strengthens |
| Past Tense |
strengthened |
| Present Participle |
strengthening |
| Past Participle |
strengthened |
Conjugate Strengthen
Strengthen in Present Simple (Indefinite) Tense
| Singular |
Plural |
| I strengthen |
We strengthen |
| You strengthen |
You strengthen |
| He/She/It strengthens |
They strengthen |
Strengthen in Present Continuous (Progressive) Tense
| Singular |
Plural |
| I am strengthening |
We are strengthening |
| You are strengthening |
You are strengthening |
| He/She/It is strengthening |
They are strengthening |
Strengthen in Present Perfect Tense
| Singular |
Plural |
| I have strengthened |
We have strengthened |
| You have strengthened |
You have strengthened |
| He/She/It has strengthened |
They have strengthened |
Strengthen in Present Perfect Continuous Tense
| Singular |
Plural |
| I have been strengthening |
We have been strengthening |
| You have been strengthening |
You have been strengthening |
| He/She/It has been strengthening |
They have been strengthening |
Strengthen in Past Simple (Indefinite) Tense
| Singular |
Plural |
| I strengthened |
We strengthened |
| You strengthened |
You strengthened |
| He/She/It strengthened |
They strengthened |
Strengthen in Past Continuous (Progressive) Tense
| Singular |
Plural |
| I was strengthening |
We were strengthening |
| You were strengthening |
You were strengthening |
| He/She/It was strengthening |
They were strengthening |
Strengthen in Past Perfect Tense
| Singular |
Plural |
| I had strengthened |
We had strengthened |
| You had strengthened |
You had strengthened |
| He/She/It had strengthened |
They had strengthened |
Strengthen in Past Perfect Continuous Tense
| Singular |
Plural |
| I had been strengthening |
We had been strengthening |
| You had been strengthening |
You had been strengthening |
| He/She/It had been strengthening |
They had been strengthening |
Strengthen in Future Simple (Indefinite) Tense
| Singular |
Plural |
| I will strengthen |
We will strengthen |
| You will strengthen |
You will strengthen |
| He/She/It will strengthen |
They will strengthen |
Strengthen in Future Continuous (Progressive) Tense
| Singular |
Plural |
| I will be strengthening |
We will be strengthening |
| You will be strengthening |
You will be strengthening |
| He/She/It will be strengthening |
They will be strengthening |
Strengthen in Future Perfect Tense
| Singular |
Plural |
| I will have strengthened |
We will have strengthened |
| You will have strengthened |
You will have strengthened |
| He/She/It will have strengthened |
They will have strengthened |
Strengthen in Future Perfect Continuous Tense
| Singular |
Plural |
| I will have been strengthening |
We will have been strengthening |
| You will have been strengthening |
You will have been strengthening |
| He/She/It will have been strengthening |
They will have been strengthening |
